Home / 3,077.90-4,247.52-1,751.60

Finding the Fourth Proportional to 3,077.90, 4,247.52 and 1,751.60

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Solution

The fourth proportional to 3,077.90, 4,247.52 and 1,751.60 is: 2,417.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.90 : 4,247.52 = 1,751.60 : x
  2. Step 2: Convert to fraction form
    3,077.90/4,247.52 = 1,751.60/x
  3. Step 3: Cross multiply
    3,077.90x = 4,247.52 × 1,751.60
  4. Step 4: Simplify right side
    3,077.90x = 7,439,934.79
  5. Step 5: Solve for x
    x = 7,439,934.79/3,077.90
  6. Step 6: Final answer
    x = 2,417.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.