Home / 3,140.06-4,342.68-2,746.40

Finding the Fourth Proportional to 3,140.06, 4,342.68 and 2,746.40

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Solution

The fourth proportional to 3,140.06, 4,342.68 and 2,746.40 is: 3,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.06 : 4,342.68 = 2,746.40 : x
  2. Step 2: Convert to fraction form
    3,140.06/4,342.68 = 2,746.40/x
  3. Step 3: Cross multiply
    3,140.06x = 4,342.68 × 2,746.40
  4. Step 4: Simplify right side
    3,140.06x = 11,926,714.64
  5. Step 5: Solve for x
    x = 11,926,714.64/3,140.06
  6. Step 6: Final answer
    x = 3,798.25

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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.