Home / 1,454.02-2,005.45-1,011.70

Finding the Fourth Proportional to 1,454.02, 2,005.45 and 1,011.70

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Solution

The fourth proportional to 1,454.02, 2,005.45 and 1,011.70 is: 1,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.02 : 2,005.45 = 1,011.70 : x
  2. Step 2: Convert to fraction form
    1,454.02/2,005.45 = 1,011.70/x
  3. Step 3: Cross multiply
    1,454.02x = 2,005.45 × 1,011.70
  4. Step 4: Simplify right side
    1,454.02x = 2,028,913.77
  5. Step 5: Solve for x
    x = 2,028,913.77/1,454.02
  6. Step 6: Final answer
    x = 1,395.38

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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.