Home / 5,156.02-7,121.11-3,484.34

Finding the Fourth Proportional to 5,156.02, 7,121.11 and 3,484.34

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Solution

The fourth proportional to 5,156.02, 7,121.11 and 3,484.34 is: 4,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.02 : 7,121.11 = 3,484.34 : x
  2. Step 2: Convert to fraction form
    5,156.02/7,121.11 = 3,484.34/x
  3. Step 3: Cross multiply
    5,156.02x = 7,121.11 × 3,484.34
  4. Step 4: Simplify right side
    5,156.02x = 24,812,332.81
  5. Step 5: Solve for x
    x = 24,812,332.81/5,156.02
  6. Step 6: Final answer
    x = 4,812.31

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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.