Home / 1,882.10-2,823.15-649.10

Finding the Fourth Proportional to 1,882.10, 2,823.15 and 649.10

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Solution

The fourth proportional to 1,882.10, 2,823.15 and 649.10 is: 973.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882.10 : 2,823.15 = 649.10 : x
  2. Step 2: Convert to fraction form
    1,882.10/2,823.15 = 649.10/x
  3. Step 3: Cross multiply
    1,882.10x = 2,823.15 × 649.10
  4. Step 4: Simplify right side
    1,882.10x = 1,832,506.67
  5. Step 5: Solve for x
    x = 1,832,506.67/1,882.10
  6. Step 6: Final answer
    x = 973.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.