Home / 1,623.60-2,239.74-1,151.46

Finding the Fourth Proportional to 1,623.60, 2,239.74 and 1,151.46

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Solution

The fourth proportional to 1,623.60, 2,239.74 and 1,151.46 is: 1,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.60 : 2,239.74 = 1,151.46 : x
  2. Step 2: Convert to fraction form
    1,623.60/2,239.74 = 1,151.46/x
  3. Step 3: Cross multiply
    1,623.60x = 2,239.74 × 1,151.46
  4. Step 4: Simplify right side
    1,623.60x = 2,578,971.02
  5. Step 5: Solve for x
    x = 2,578,971.02/1,623.60
  6. Step 6: Final answer
    x = 1,588.43

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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.