Home / 2,152.19-2,967.02-1,442.80

Finding the Fourth Proportional to 2,152.19, 2,967.02 and 1,442.80

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Solution

The fourth proportional to 2,152.19, 2,967.02 and 1,442.80 is: 1,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.19 : 2,967.02 = 1,442.80 : x
  2. Step 2: Convert to fraction form
    2,152.19/2,967.02 = 1,442.80/x
  3. Step 3: Cross multiply
    2,152.19x = 2,967.02 × 1,442.80
  4. Step 4: Simplify right side
    2,152.19x = 4,280,816.46
  5. Step 5: Solve for x
    x = 4,280,816.46/2,152.19
  6. Step 6: Final answer
    x = 1,989.05

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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.