Home / 2,388.64-3,284.40-2,038.72

Finding the Fourth Proportional to 2,388.64, 3,284.40 and 2,038.72

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Solution

The fourth proportional to 2,388.64, 3,284.40 and 2,038.72 is: 2,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.64 : 3,284.40 = 2,038.72 : x
  2. Step 2: Convert to fraction form
    2,388.64/3,284.40 = 2,038.72/x
  3. Step 3: Cross multiply
    2,388.64x = 3,284.40 × 2,038.72
  4. Step 4: Simplify right side
    2,388.64x = 6,695,971.97
  5. Step 5: Solve for x
    x = 6,695,971.97/2,388.64
  6. Step 6: Final answer
    x = 2,803.26

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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.