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Finding the Fourth Proportional to 2,681.68, 3,700.74 and 1,547.33

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Solution

The fourth proportional to 2,681.68, 3,700.74 and 1,547.33 is: 2,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.68 : 3,700.74 = 1,547.33 : x
  2. Step 2: Convert to fraction form
    2,681.68/3,700.74 = 1,547.33/x
  3. Step 3: Cross multiply
    2,681.68x = 3,700.74 × 1,547.33
  4. Step 4: Simplify right side
    2,681.68x = 5,726,255.03
  5. Step 5: Solve for x
    x = 5,726,255.03/2,681.68
  6. Step 6: Final answer
    x = 2,135.32

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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.