Home / 2,658.09-3,985.80-1,547.87

Finding the Fourth Proportional to 2,658.09, 3,985.80 and 1,547.87

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Solution

The fourth proportional to 2,658.09, 3,985.80 and 1,547.87 is: 2,321.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.09 : 3,985.80 = 1,547.87 : x
  2. Step 2: Convert to fraction form
    2,658.09/3,985.80 = 1,547.87/x
  3. Step 3: Cross multiply
    2,658.09x = 3,985.80 × 1,547.87
  4. Step 4: Simplify right side
    2,658.09x = 6,169,495.26
  5. Step 5: Solve for x
    x = 6,169,495.26/2,658.09
  6. Step 6: Final answer
    x = 2,321.02

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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.