Home / 5,074.40-7,001.28-3,085.28

Finding the Fourth Proportional to 5,074.40, 7,001.28 and 3,085.28

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Solution

The fourth proportional to 5,074.40, 7,001.28 and 3,085.28 is: 4,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.40 : 7,001.28 = 3,085.28 : x
  2. Step 2: Convert to fraction form
    5,074.40/7,001.28 = 3,085.28/x
  3. Step 3: Cross multiply
    5,074.40x = 7,001.28 × 3,085.28
  4. Step 4: Simplify right side
    5,074.40x = 21,600,909.16
  5. Step 5: Solve for x
    x = 21,600,909.16/5,074.40
  6. Step 6: Final answer
    x = 4,256.84

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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.