Home / 2,333.12-3,504.64-1,987.20

Finding the Fourth Proportional to 2,333.12, 3,504.64 and 1,987.20

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Solution

The fourth proportional to 2,333.12, 3,504.64 and 1,987.20 is: 2,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.12 : 3,504.64 = 1,987.20 : x
  2. Step 2: Convert to fraction form
    2,333.12/3,504.64 = 1,987.20/x
  3. Step 3: Cross multiply
    2,333.12x = 3,504.64 × 1,987.20
  4. Step 4: Simplify right side
    2,333.12x = 6,964,420.61
  5. Step 5: Solve for x
    x = 6,964,420.61/2,333.12
  6. Step 6: Final answer
    x = 2,985.02

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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.