Home / 2,089.18-2,881.68-1,590.70

Finding the Fourth Proportional to 2,089.18, 2,881.68 and 1,590.70

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Solution

The fourth proportional to 2,089.18, 2,881.68 and 1,590.70 is: 2,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.18 : 2,881.68 = 1,590.70 : x
  2. Step 2: Convert to fraction form
    2,089.18/2,881.68 = 1,590.70/x
  3. Step 3: Cross multiply
    2,089.18x = 2,881.68 × 1,590.70
  4. Step 4: Simplify right side
    2,089.18x = 4,583,888.38
  5. Step 5: Solve for x
    x = 4,583,888.38/2,089.18
  6. Step 6: Final answer
    x = 2,194.11

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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.