Home / 1,819.16-2,505.28-1,655.13

Finding the Fourth Proportional to 1,819.16, 2,505.28 and 1,655.13

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Solution

The fourth proportional to 1,819.16, 2,505.28 and 1,655.13 is: 2,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.16 : 2,505.28 = 1,655.13 : x
  2. Step 2: Convert to fraction form
    1,819.16/2,505.28 = 1,655.13/x
  3. Step 3: Cross multiply
    1,819.16x = 2,505.28 × 1,655.13
  4. Step 4: Simplify right side
    1,819.16x = 4,146,555.81
  5. Step 5: Solve for x
    x = 4,146,555.81/1,819.16
  6. Step 6: Final answer
    x = 2,279.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.