Home / 3,720.60-5,580.40-1,774.16

Finding the Fourth Proportional to 3,720.60, 5,580.40 and 1,774.16

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Solution

The fourth proportional to 3,720.60, 5,580.40 and 1,774.16 is: 2,661.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.60 : 5,580.40 = 1,774.16 : x
  2. Step 2: Convert to fraction form
    3,720.60/5,580.40 = 1,774.16/x
  3. Step 3: Cross multiply
    3,720.60x = 5,580.40 × 1,774.16
  4. Step 4: Simplify right side
    3,720.60x = 9,900,522.46
  5. Step 5: Solve for x
    x = 9,900,522.46/3,720.60
  6. Step 6: Final answer
    x = 2,661.00

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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.