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Finding the Fourth Proportional to 6,590.81, 9,880.62 and 2,890.23

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Solution

The fourth proportional to 6,590.81, 9,880.62 and 2,890.23 is: 4,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590.81 : 9,880.62 = 2,890.23 : x
  2. Step 2: Convert to fraction form
    6,590.81/9,880.62 = 2,890.23/x
  3. Step 3: Cross multiply
    6,590.81x = 9,880.62 × 2,890.23
  4. Step 4: Simplify right side
    6,590.81x = 28,557,264.34
  5. Step 5: Solve for x
    x = 28,557,264.34/6,590.81
  6. Step 6: Final answer
    x = 4,332.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.