Home / 5,518.60-7,614.81-3,160.28

Finding the Fourth Proportional to 5,518.60, 7,614.81 and 3,160.28

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Solution

The fourth proportional to 5,518.60, 7,614.81 and 3,160.28 is: 4,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.60 : 7,614.81 = 3,160.28 : x
  2. Step 2: Convert to fraction form
    5,518.60/7,614.81 = 3,160.28/x
  3. Step 3: Cross multiply
    5,518.60x = 7,614.81 × 3,160.28
  4. Step 4: Simplify right side
    5,518.60x = 24,064,931.75
  5. Step 5: Solve for x
    x = 24,064,931.75/5,518.60
  6. Step 6: Final answer
    x = 4,360.70

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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.