Home / 1,424.66-2,129.02-1,345.68

Finding the Fourth Proportional to 1,424.66, 2,129.02 and 1,345.68

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Solution

The fourth proportional to 1,424.66, 2,129.02 and 1,345.68 is: 2,011.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.66 : 2,129.02 = 1,345.68 : x
  2. Step 2: Convert to fraction form
    1,424.66/2,129.02 = 1,345.68/x
  3. Step 3: Cross multiply
    1,424.66x = 2,129.02 × 1,345.68
  4. Step 4: Simplify right side
    1,424.66x = 2,864,976.27
  5. Step 5: Solve for x
    x = 2,864,976.27/1,424.66
  6. Step 6: Final answer
    x = 2,011.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.