Home / 1,595.34-2,381.60-1,387.80

Finding the Fourth Proportional to 1,595.34, 2,381.60 and 1,387.80

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Solution

The fourth proportional to 1,595.34, 2,381.60 and 1,387.80 is: 2,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.34 : 2,381.60 = 1,387.80 : x
  2. Step 2: Convert to fraction form
    1,595.34/2,381.60 = 1,387.80/x
  3. Step 3: Cross multiply
    1,595.34x = 2,381.60 × 1,387.80
  4. Step 4: Simplify right side
    1,595.34x = 3,305,184.48
  5. Step 5: Solve for x
    x = 3,305,184.48/1,595.34
  6. Step 6: Final answer
    x = 2,071.77

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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.