Home / 1,430.92-2,144.20-846.28

Finding the Fourth Proportional to 1,430.92, 2,144.20 and 846.28

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Solution

The fourth proportional to 1,430.92, 2,144.20 and 846.28 is: 1,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.92 : 2,144.20 = 846.28 : x
  2. Step 2: Convert to fraction form
    1,430.92/2,144.20 = 846.28/x
  3. Step 3: Cross multiply
    1,430.92x = 2,144.20 × 846.28
  4. Step 4: Simplify right side
    1,430.92x = 1,814,593.58
  5. Step 5: Solve for x
    x = 1,814,593.58/1,430.92
  6. Step 6: Final answer
    x = 1,268.13

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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.