Home / 1,459.58-2,174.43-1,389.92

Finding the Fourth Proportional to 1,459.58, 2,174.43 and 1,389.92

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Solution

The fourth proportional to 1,459.58, 2,174.43 and 1,389.92 is: 2,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.58 : 2,174.43 = 1,389.92 : x
  2. Step 2: Convert to fraction form
    1,459.58/2,174.43 = 1,389.92/x
  3. Step 3: Cross multiply
    1,459.58x = 2,174.43 × 1,389.92
  4. Step 4: Simplify right side
    1,459.58x = 3,022,283.75
  5. Step 5: Solve for x
    x = 3,022,283.75/1,459.58
  6. Step 6: Final answer
    x = 2,070.65

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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.