Home / 1,590.70-2,195.18-927.96

Finding the Fourth Proportional to 1,590.70, 2,195.18 and 927.96

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Solution

The fourth proportional to 1,590.70, 2,195.18 and 927.96 is: 1,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.70 : 2,195.18 = 927.96 : x
  2. Step 2: Convert to fraction form
    1,590.70/2,195.18 = 927.96/x
  3. Step 3: Cross multiply
    1,590.70x = 2,195.18 × 927.96
  4. Step 4: Simplify right side
    1,590.70x = 2,037,039.23
  5. Step 5: Solve for x
    x = 2,037,039.23/1,590.70
  6. Step 6: Final answer
    x = 1,280.59

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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.