Home / 1,628.55-2,432.93-1,038.86

Finding the Fourth Proportional to 1,628.55, 2,432.93 and 1,038.86

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Solution

The fourth proportional to 1,628.55, 2,432.93 and 1,038.86 is: 1,551.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.55 : 2,432.93 = 1,038.86 : x
  2. Step 2: Convert to fraction form
    1,628.55/2,432.93 = 1,038.86/x
  3. Step 3: Cross multiply
    1,628.55x = 2,432.93 × 1,038.86
  4. Step 4: Simplify right side
    1,628.55x = 2,527,473.66
  5. Step 5: Solve for x
    x = 2,527,473.66/1,628.55
  6. Step 6: Final answer
    x = 1,551.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.