Home / 1,715.12-2,573.80-1,066.30

Finding the Fourth Proportional to 1,715.12, 2,573.80 and 1,066.30

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Solution

The fourth proportional to 1,715.12, 2,573.80 and 1,066.30 is: 1,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.12 : 2,573.80 = 1,066.30 : x
  2. Step 2: Convert to fraction form
    1,715.12/2,573.80 = 1,066.30/x
  3. Step 3: Cross multiply
    1,715.12x = 2,573.80 × 1,066.30
  4. Step 4: Simplify right side
    1,715.12x = 2,744,442.94
  5. Step 5: Solve for x
    x = 2,744,442.94/1,715.12
  6. Step 6: Final answer
    x = 1,600.15

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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.