Home / 2,243.36-3,095.88-1,312.40

Finding the Fourth Proportional to 2,243.36, 3,095.88 and 1,312.40

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Solution

The fourth proportional to 2,243.36, 3,095.88 and 1,312.40 is: 1,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,243.36 : 3,095.88 = 1,312.40 : x
  2. Step 2: Convert to fraction form
    2,243.36/3,095.88 = 1,312.40/x
  3. Step 3: Cross multiply
    2,243.36x = 3,095.88 × 1,312.40
  4. Step 4: Simplify right side
    2,243.36x = 4,063,032.91
  5. Step 5: Solve for x
    x = 4,063,032.91/2,243.36
  6. Step 6: Final answer
    x = 1,811.14

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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.