Home / 1,461.50-2,189.28-1,217.24

Finding the Fourth Proportional to 1,461.50, 2,189.28 and 1,217.24

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Solution

The fourth proportional to 1,461.50, 2,189.28 and 1,217.24 is: 1,823.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.50 : 2,189.28 = 1,217.24 : x
  2. Step 2: Convert to fraction form
    1,461.50/2,189.28 = 1,217.24/x
  3. Step 3: Cross multiply
    1,461.50x = 2,189.28 × 1,217.24
  4. Step 4: Simplify right side
    1,461.50x = 2,664,879.19
  5. Step 5: Solve for x
    x = 2,664,879.19/1,461.50
  6. Step 6: Final answer
    x = 1,823.39

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Half scale
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Double scale
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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.