Home / 2,864.15-4,290.75-1,475.40

Finding the Fourth Proportional to 2,864.15, 4,290.75 and 1,475.40

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Solution

The fourth proportional to 2,864.15, 4,290.75 and 1,475.40 is: 2,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.15 : 4,290.75 = 1,475.40 : x
  2. Step 2: Convert to fraction form
    2,864.15/4,290.75 = 1,475.40/x
  3. Step 3: Cross multiply
    2,864.15x = 4,290.75 × 1,475.40
  4. Step 4: Simplify right side
    2,864.15x = 6,330,572.55
  5. Step 5: Solve for x
    x = 6,330,572.55/2,864.15
  6. Step 6: Final answer
    x = 2,210.28

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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.