Home / 1,444.80-2,166.96-623.20

Finding the Fourth Proportional to 1,444.80, 2,166.96 and 623.20

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Solution

The fourth proportional to 1,444.80, 2,166.96 and 623.20 is: 934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.80 : 2,166.96 = 623.20 : x
  2. Step 2: Convert to fraction form
    1,444.80/2,166.96 = 623.20/x
  3. Step 3: Cross multiply
    1,444.80x = 2,166.96 × 623.20
  4. Step 4: Simplify right side
    1,444.80x = 1,350,449.47
  5. Step 5: Solve for x
    x = 1,350,449.47/1,444.80
  6. Step 6: Final answer
    x = 934.70

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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.