Home / 7,478.81-10,320.63-4,291.97

Finding the Fourth Proportional to 7,478.81, 10,320.63 and 4,291.97

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Solution

The fourth proportional to 7,478.81, 10,320.63 and 4,291.97 is: 5,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.81 : 10,320.63 = 4,291.97 : x
  2. Step 2: Convert to fraction form
    7,478.81/10,320.63 = 4,291.97/x
  3. Step 3: Cross multiply
    7,478.81x = 10,320.63 × 4,291.97
  4. Step 4: Simplify right side
    7,478.81x = 44,295,823.61
  5. Step 5: Solve for x
    x = 44,295,823.61/7,478.81
  6. Step 6: Final answer
    x = 5,922.85

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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.