Home / 5,329.02-7,354.40-2,971.20

Finding the Fourth Proportional to 5,329.02, 7,354.40 and 2,971.20

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Solution

The fourth proportional to 5,329.02, 7,354.40 and 2,971.20 is: 4,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.02 : 7,354.40 = 2,971.20 : x
  2. Step 2: Convert to fraction form
    5,329.02/7,354.40 = 2,971.20/x
  3. Step 3: Cross multiply
    5,329.02x = 7,354.40 × 2,971.20
  4. Step 4: Simplify right side
    5,329.02x = 21,851,393.28
  5. Step 5: Solve for x
    x = 21,851,393.28/5,329.02
  6. Step 6: Final answer
    x = 4,100.45

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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.