Home / 4,987.03-7,484-1,984.76

Finding the Fourth Proportional to 4,987.03, 7,484 and 1,984.76

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Solution

The fourth proportional to 4,987.03, 7,484 and 1,984.76 is: 2,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.03 : 7,484 = 1,984.76 : x
  2. Step 2: Convert to fraction form
    4,987.03/7,484 = 1,984.76/x
  3. Step 3: Cross multiply
    4,987.03x = 7,484 × 1,984.76
  4. Step 4: Simplify right side
    4,987.03x = 14,853,943.84
  5. Step 5: Solve for x
    x = 14,853,943.84/4,987.03
  6. Step 6: Final answer
    x = 2,978.52

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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.