Home / 1,588.06-2,189.46-1,089.80

Finding the Fourth Proportional to 1,588.06, 2,189.46 and 1,089.80

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Solution

The fourth proportional to 1,588.06, 2,189.46 and 1,089.80 is: 1,502.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.06 : 2,189.46 = 1,089.80 : x
  2. Step 2: Convert to fraction form
    1,588.06/2,189.46 = 1,089.80/x
  3. Step 3: Cross multiply
    1,588.06x = 2,189.46 × 1,089.80
  4. Step 4: Simplify right side
    1,588.06x = 2,386,073.51
  5. Step 5: Solve for x
    x = 2,386,073.51/1,588.06
  6. Step 6: Final answer
    x = 1,502.51

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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.