Home / 7,517.30-11,275.65-1,970.60

Finding the Fourth Proportional to 7,517.30, 11,275.65 and 1,970.60

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Solution

The fourth proportional to 7,517.30, 11,275.65 and 1,970.60 is: 2,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.30 : 11,275.65 = 1,970.60 : x
  2. Step 2: Convert to fraction form
    7,517.30/11,275.65 = 1,970.60/x
  3. Step 3: Cross multiply
    7,517.30x = 11,275.65 × 1,970.60
  4. Step 4: Simplify right side
    7,517.30x = 22,219,739.51
  5. Step 5: Solve for x
    x = 22,219,739.51/7,517.30
  6. Step 6: Final answer
    x = 2,955.82

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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.