Home / 7,330.36-10,117.76-4,188.40

Finding the Fourth Proportional to 7,330.36, 10,117.76 and 4,188.40

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Solution

The fourth proportional to 7,330.36, 10,117.76 and 4,188.40 is: 5,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,330.36 : 10,117.76 = 4,188.40 : x
  2. Step 2: Convert to fraction form
    7,330.36/10,117.76 = 4,188.40/x
  3. Step 3: Cross multiply
    7,330.36x = 10,117.76 × 4,188.40
  4. Step 4: Simplify right side
    7,330.36x = 42,377,225.98
  5. Step 5: Solve for x
    x = 42,377,225.98/7,330.36
  6. Step 6: Final answer
    x = 5,781.06

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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.