Home / 5,384.55-7,430.61-3,146.79

Finding the Fourth Proportional to 5,384.55, 7,430.61 and 3,146.79

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Solution

The fourth proportional to 5,384.55, 7,430.61 and 3,146.79 is: 4,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.55 : 7,430.61 = 3,146.79 : x
  2. Step 2: Convert to fraction form
    5,384.55/7,430.61 = 3,146.79/x
  3. Step 3: Cross multiply
    5,384.55x = 7,430.61 × 3,146.79
  4. Step 4: Simplify right side
    5,384.55x = 23,382,569.24
  5. Step 5: Solve for x
    x = 23,382,569.24/5,384.55
  6. Step 6: Final answer
    x = 4,342.53

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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.