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Finding the Fourth Proportional to 1,700.90, 2,547.59 and 1,308.02

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Solution

The fourth proportional to 1,700.90, 2,547.59 and 1,308.02 is: 1,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.90 : 2,547.59 = 1,308.02 : x
  2. Step 2: Convert to fraction form
    1,700.90/2,547.59 = 1,308.02/x
  3. Step 3: Cross multiply
    1,700.90x = 2,547.59 × 1,308.02
  4. Step 4: Simplify right side
    1,700.90x = 3,332,289.20
  5. Step 5: Solve for x
    x = 3,332,289.20/1,700.90
  6. Step 6: Final answer
    x = 1,959.13

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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.