Home / 5,384.59-7,430.07-3,116.32

Finding the Fourth Proportional to 5,384.59, 7,430.07 and 3,116.32

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Solution

The fourth proportional to 5,384.59, 7,430.07 and 3,116.32 is: 4,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.59 : 7,430.07 = 3,116.32 : x
  2. Step 2: Convert to fraction form
    5,384.59/7,430.07 = 3,116.32/x
  3. Step 3: Cross multiply
    5,384.59x = 7,430.07 × 3,116.32
  4. Step 4: Simplify right side
    5,384.59x = 23,154,475.74
  5. Step 5: Solve for x
    x = 23,154,475.74/5,384.59
  6. Step 6: Final answer
    x = 4,300.14

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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.