Home / 1,536.18-2,119.98-837.57

Finding the Fourth Proportional to 1,536.18, 2,119.98 and 837.57

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Solution

The fourth proportional to 1,536.18, 2,119.98 and 837.57 is: 1,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.18 : 2,119.98 = 837.57 : x
  2. Step 2: Convert to fraction form
    1,536.18/2,119.98 = 837.57/x
  3. Step 3: Cross multiply
    1,536.18x = 2,119.98 × 837.57
  4. Step 4: Simplify right side
    1,536.18x = 1,775,631.65
  5. Step 5: Solve for x
    x = 1,775,631.65/1,536.18
  6. Step 6: Final answer
    x = 1,155.87

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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.