Home / 2,859.18-4,292.40-2,665.40

Finding the Fourth Proportional to 2,859.18, 4,292.40 and 2,665.40

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Solution

The fourth proportional to 2,859.18, 4,292.40 and 2,665.40 is: 4,001.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.18 : 4,292.40 = 2,665.40 : x
  2. Step 2: Convert to fraction form
    2,859.18/4,292.40 = 2,665.40/x
  3. Step 3: Cross multiply
    2,859.18x = 4,292.40 × 2,665.40
  4. Step 4: Simplify right side
    2,859.18x = 11,440,962.96
  5. Step 5: Solve for x
    x = 11,440,962.96/2,859.18
  6. Step 6: Final answer
    x = 4,001.48

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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.