Home / 1,458.08-2,012.24-837.12

Finding the Fourth Proportional to 1,458.08, 2,012.24 and 837.12

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Solution

The fourth proportional to 1,458.08, 2,012.24 and 837.12 is: 1,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.08 : 2,012.24 = 837.12 : x
  2. Step 2: Convert to fraction form
    1,458.08/2,012.24 = 837.12/x
  3. Step 3: Cross multiply
    1,458.08x = 2,012.24 × 837.12
  4. Step 4: Simplify right side
    1,458.08x = 1,684,486.35
  5. Step 5: Solve for x
    x = 1,684,486.35/1,458.08
  6. Step 6: Final answer
    x = 1,155.28

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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.