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Finding the Fourth Proportional to 5,812.54, 8,718.81 and 1,430.08

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Solution

The fourth proportional to 5,812.54, 8,718.81 and 1,430.08 is: 2,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.54 : 8,718.81 = 1,430.08 : x
  2. Step 2: Convert to fraction form
    5,812.54/8,718.81 = 1,430.08/x
  3. Step 3: Cross multiply
    5,812.54x = 8,718.81 × 1,430.08
  4. Step 4: Simplify right side
    5,812.54x = 12,468,595.80
  5. Step 5: Solve for x
    x = 12,468,595.80/5,812.54
  6. Step 6: Final answer
    x = 2,145.12

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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.