Home / 4,913.90-7,363.65-1,987.10

Finding the Fourth Proportional to 4,913.90, 7,363.65 and 1,987.10

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Solution

The fourth proportional to 4,913.90, 7,363.65 and 1,987.10 is: 2,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.90 : 7,363.65 = 1,987.10 : x
  2. Step 2: Convert to fraction form
    4,913.90/7,363.65 = 1,987.10/x
  3. Step 3: Cross multiply
    4,913.90x = 7,363.65 × 1,987.10
  4. Step 4: Simplify right side
    4,913.90x = 14,632,308.92
  5. Step 5: Solve for x
    x = 14,632,308.92/4,913.90
  6. Step 6: Final answer
    x = 2,977.74

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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.