Home / 2,376.95-3,280.30-1,432.79

Finding the Fourth Proportional to 2,376.95, 3,280.30 and 1,432.79

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Solution

The fourth proportional to 2,376.95, 3,280.30 and 1,432.79 is: 1,977.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.95 : 3,280.30 = 1,432.79 : x
  2. Step 2: Convert to fraction form
    2,376.95/3,280.30 = 1,432.79/x
  3. Step 3: Cross multiply
    2,376.95x = 3,280.30 × 1,432.79
  4. Step 4: Simplify right side
    2,376.95x = 4,699,973.35
  5. Step 5: Solve for x
    x = 4,699,973.35/2,376.95
  6. Step 6: Final answer
    x = 1,977.32

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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.