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Finding the Fourth Proportional to 5,259.87, 7,891.08 and 1,973.00

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Solution

The fourth proportional to 5,259.87, 7,891.08 and 1,973.00 is: 2,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.87 : 7,891.08 = 1,973.00 : x
  2. Step 2: Convert to fraction form
    5,259.87/7,891.08 = 1,973.00/x
  3. Step 3: Cross multiply
    5,259.87x = 7,891.08 × 1,973.00
  4. Step 4: Simplify right side
    5,259.87x = 15,569,061.38
  5. Step 5: Solve for x
    x = 15,569,061.38/5,259.87
  6. Step 6: Final answer
    x = 2,959.97

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Double scale
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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.