Home / 7,931.20-10,943.04-4,946.80

Finding the Fourth Proportional to 7,931.20, 10,943.04 and 4,946.80

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Solution

The fourth proportional to 7,931.20, 10,943.04 and 4,946.80 is: 6,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.20 : 10,943.04 = 4,946.80 : x
  2. Step 2: Convert to fraction form
    7,931.20/10,943.04 = 4,946.80/x
  3. Step 3: Cross multiply
    7,931.20x = 10,943.04 × 4,946.80
  4. Step 4: Simplify right side
    7,931.20x = 54,133,030.27
  5. Step 5: Solve for x
    x = 54,133,030.27/7,931.20
  6. Step 6: Final answer
    x = 6,825.33

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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.