Home / 2,478.60-3,720.33-2,070.36

Finding the Fourth Proportional to 2,478.60, 3,720.33 and 2,070.36

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Solution

The fourth proportional to 2,478.60, 3,720.33 and 2,070.36 is: 3,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.60 : 3,720.33 = 2,070.36 : x
  2. Step 2: Convert to fraction form
    2,478.60/3,720.33 = 2,070.36/x
  3. Step 3: Cross multiply
    2,478.60x = 3,720.33 × 2,070.36
  4. Step 4: Simplify right side
    2,478.60x = 7,702,422.42
  5. Step 5: Solve for x
    x = 7,702,422.42/2,478.60
  6. Step 6: Final answer
    x = 3,107.57

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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.