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Finding the Fourth Proportional to 5,866.80, 8,801.12 and 1,970.32

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Solution

The fourth proportional to 5,866.80, 8,801.12 and 1,970.32 is: 2,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,866.80 : 8,801.12 = 1,970.32 : x
  2. Step 2: Convert to fraction form
    5,866.80/8,801.12 = 1,970.32/x
  3. Step 3: Cross multiply
    5,866.80x = 8,801.12 × 1,970.32
  4. Step 4: Simplify right side
    5,866.80x = 17,341,022.76
  5. Step 5: Solve for x
    x = 17,341,022.76/5,866.80
  6. Step 6: Final answer
    x = 2,955.79

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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.