Home / 3,740.90-5,619.45-3,603.20

Finding the Fourth Proportional to 3,740.90, 5,619.45 and 3,603.20

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Solution

The fourth proportional to 3,740.90, 5,619.45 and 3,603.20 is: 5,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.90 : 5,619.45 = 3,603.20 : x
  2. Step 2: Convert to fraction form
    3,740.90/5,619.45 = 3,603.20/x
  3. Step 3: Cross multiply
    3,740.90x = 5,619.45 × 3,603.20
  4. Step 4: Simplify right side
    3,740.90x = 20,248,002.24
  5. Step 5: Solve for x
    x = 20,248,002.24/3,740.90
  6. Step 6: Final answer
    x = 5,412.60

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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.