Home / 1,652.28-2,281.32-1,210.80

Finding the Fourth Proportional to 1,652.28, 2,281.32 and 1,210.80

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Solution

The fourth proportional to 1,652.28, 2,281.32 and 1,210.80 is: 1,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.28 : 2,281.32 = 1,210.80 : x
  2. Step 2: Convert to fraction form
    1,652.28/2,281.32 = 1,210.80/x
  3. Step 3: Cross multiply
    1,652.28x = 2,281.32 × 1,210.80
  4. Step 4: Simplify right side
    1,652.28x = 2,762,222.26
  5. Step 5: Solve for x
    x = 2,762,222.26/1,652.28
  6. Step 6: Final answer
    x = 1,671.76

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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.