Home / 4,585.87-6,878.81-1,988.75

Finding the Fourth Proportional to 4,585.87, 6,878.81 and 1,988.75

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Solution

The fourth proportional to 4,585.87, 6,878.81 and 1,988.75 is: 2,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,585.87 : 6,878.81 = 1,988.75 : x
  2. Step 2: Convert to fraction form
    4,585.87/6,878.81 = 1,988.75/x
  3. Step 3: Cross multiply
    4,585.87x = 6,878.81 × 1,988.75
  4. Step 4: Simplify right side
    4,585.87x = 13,680,223.44
  5. Step 5: Solve for x
    x = 13,680,223.44/4,585.87
  6. Step 6: Final answer
    x = 2,983.13

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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.