Home / 1,586.19-2,189.90-1,035.15

Finding the Fourth Proportional to 1,586.19, 2,189.90 and 1,035.15

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Solution

The fourth proportional to 1,586.19, 2,189.90 and 1,035.15 is: 1,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.19 : 2,189.90 = 1,035.15 : x
  2. Step 2: Convert to fraction form
    1,586.19/2,189.90 = 1,035.15/x
  3. Step 3: Cross multiply
    1,586.19x = 2,189.90 × 1,035.15
  4. Step 4: Simplify right side
    1,586.19x = 2,266,868.22
  5. Step 5: Solve for x
    x = 2,266,868.22/1,586.19
  6. Step 6: Final answer
    x = 1,429.13

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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.