Home / 2,280.07-3,421.32-981.46

Finding the Fourth Proportional to 2,280.07, 3,421.32 and 981.46

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Solution

The fourth proportional to 2,280.07, 3,421.32 and 981.46 is: 1,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.07 : 3,421.32 = 981.46 : x
  2. Step 2: Convert to fraction form
    2,280.07/3,421.32 = 981.46/x
  3. Step 3: Cross multiply
    2,280.07x = 3,421.32 × 981.46
  4. Step 4: Simplify right side
    2,280.07x = 3,357,888.73
  5. Step 5: Solve for x
    x = 3,357,888.73/2,280.07
  6. Step 6: Final answer
    x = 1,472.71

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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.