Home / 1,595.10-2,200.68-931.80

Finding the Fourth Proportional to 1,595.10, 2,200.68 and 931.80

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Solution

The fourth proportional to 1,595.10, 2,200.68 and 931.80 is: 1,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.10 : 2,200.68 = 931.80 : x
  2. Step 2: Convert to fraction form
    1,595.10/2,200.68 = 931.80/x
  3. Step 3: Cross multiply
    1,595.10x = 2,200.68 × 931.80
  4. Step 4: Simplify right side
    1,595.10x = 2,050,593.62
  5. Step 5: Solve for x
    x = 2,050,593.62/1,595.10
  6. Step 6: Final answer
    x = 1,285.56

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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.