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Finding the Fourth Proportional to 2,547.53, 3,515.80 and 1,499.80

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Solution

The fourth proportional to 2,547.53, 3,515.80 and 1,499.80 is: 2,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.53 : 3,515.80 = 1,499.80 : x
  2. Step 2: Convert to fraction form
    2,547.53/3,515.80 = 1,499.80/x
  3. Step 3: Cross multiply
    2,547.53x = 3,515.80 × 1,499.80
  4. Step 4: Simplify right side
    2,547.53x = 5,272,996.84
  5. Step 5: Solve for x
    x = 5,272,996.84/2,547.53
  6. Step 6: Final answer
    x = 2,069.85

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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.