Home / 1,590.74-2,195.61-927.45

Finding the Fourth Proportional to 1,590.74, 2,195.61 and 927.45

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Solution

The fourth proportional to 1,590.74, 2,195.61 and 927.45 is: 1,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.74 : 2,195.61 = 927.45 : x
  2. Step 2: Convert to fraction form
    1,590.74/2,195.61 = 927.45/x
  3. Step 3: Cross multiply
    1,590.74x = 2,195.61 × 927.45
  4. Step 4: Simplify right side
    1,590.74x = 2,036,315.02
  5. Step 5: Solve for x
    x = 2,036,315.02/1,590.74
  6. Step 6: Final answer
    x = 1,280.11

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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.