Home / 2,230.32-3,077.93-1,345.95

Finding the Fourth Proportional to 2,230.32, 3,077.93 and 1,345.95

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Solution

The fourth proportional to 2,230.32, 3,077.93 and 1,345.95 is: 1,857.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.32 : 3,077.93 = 1,345.95 : x
  2. Step 2: Convert to fraction form
    2,230.32/3,077.93 = 1,345.95/x
  3. Step 3: Cross multiply
    2,230.32x = 3,077.93 × 1,345.95
  4. Step 4: Simplify right side
    2,230.32x = 4,142,733.15
  5. Step 5: Solve for x
    x = 4,142,733.15/2,230.32
  6. Step 6: Final answer
    x = 1,857.46

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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.