Home / 2,238.60-3,088.80-1,307.10

Finding the Fourth Proportional to 2,238.60, 3,088.80 and 1,307.10

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Solution

The fourth proportional to 2,238.60, 3,088.80 and 1,307.10 is: 1,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.60 : 3,088.80 = 1,307.10 : x
  2. Step 2: Convert to fraction form
    2,238.60/3,088.80 = 1,307.10/x
  3. Step 3: Cross multiply
    2,238.60x = 3,088.80 × 1,307.10
  4. Step 4: Simplify right side
    2,238.60x = 4,037,370.48
  5. Step 5: Solve for x
    x = 4,037,370.48/2,238.60
  6. Step 6: Final answer
    x = 1,803.52

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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.