Home / 5,068.40-6,991.80-2,972.16

Finding the Fourth Proportional to 5,068.40, 6,991.80 and 2,972.16

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Solution

The fourth proportional to 5,068.40, 6,991.80 and 2,972.16 is: 4,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,068.40 : 6,991.80 = 2,972.16 : x
  2. Step 2: Convert to fraction form
    5,068.40/6,991.80 = 2,972.16/x
  3. Step 3: Cross multiply
    5,068.40x = 6,991.80 × 2,972.16
  4. Step 4: Simplify right side
    5,068.40x = 20,780,748.29
  5. Step 5: Solve for x
    x = 20,780,748.29/5,068.40
  6. Step 6: Final answer
    x = 4,100.06

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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.