Home / 7,289.47-10,925.79-3,123.28

Finding the Fourth Proportional to 7,289.47, 10,925.79 and 3,123.28

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Solution

The fourth proportional to 7,289.47, 10,925.79 and 3,123.28 is: 4,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.47 : 10,925.79 = 3,123.28 : x
  2. Step 2: Convert to fraction form
    7,289.47/10,925.79 = 3,123.28/x
  3. Step 3: Cross multiply
    7,289.47x = 10,925.79 × 3,123.28
  4. Step 4: Simplify right side
    7,289.47x = 34,124,301.39
  5. Step 5: Solve for x
    x = 34,124,301.39/7,289.47
  6. Step 6: Final answer
    x = 4,681.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.