Home / 5,417.28-8,130.66-2,646

Finding the Fourth Proportional to 5,417.28, 8,130.66 and 2,646

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Solution

The fourth proportional to 5,417.28, 8,130.66 and 2,646 is: 3,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.28 : 8,130.66 = 2,646 : x
  2. Step 2: Convert to fraction form
    5,417.28/8,130.66 = 2,646/x
  3. Step 3: Cross multiply
    5,417.28x = 8,130.66 × 2,646
  4. Step 4: Simplify right side
    5,417.28x = 21,513,726.36
  5. Step 5: Solve for x
    x = 21,513,726.36/5,417.28
  6. Step 6: Final answer
    x = 3,971.32

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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.