Home / 5,268.32-7,901.84-1,980.56

Finding the Fourth Proportional to 5,268.32, 7,901.84 and 1,980.56

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Solution

The fourth proportional to 5,268.32, 7,901.84 and 1,980.56 is: 2,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.32 : 7,901.84 = 1,980.56 : x
  2. Step 2: Convert to fraction form
    5,268.32/7,901.84 = 1,980.56/x
  3. Step 3: Cross multiply
    5,268.32x = 7,901.84 × 1,980.56
  4. Step 4: Simplify right side
    5,268.32x = 15,650,068.23
  5. Step 5: Solve for x
    x = 15,650,068.23/5,268.32
  6. Step 6: Final answer
    x = 2,970.60

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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.