Home / 1,557.65-2,148.80-1,446.48

Finding the Fourth Proportional to 1,557.65, 2,148.80 and 1,446.48

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Solution

The fourth proportional to 1,557.65, 2,148.80 and 1,446.48 is: 1,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.65 : 2,148.80 = 1,446.48 : x
  2. Step 2: Convert to fraction form
    1,557.65/2,148.80 = 1,446.48/x
  3. Step 3: Cross multiply
    1,557.65x = 2,148.80 × 1,446.48
  4. Step 4: Simplify right side
    1,557.65x = 3,108,188.99
  5. Step 5: Solve for x
    x = 3,108,188.99/1,557.65
  6. Step 6: Final answer
    x = 1,995.43

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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.