Home / 2,148.06-2,962.86-1,308.18

Finding the Fourth Proportional to 2,148.06, 2,962.86 and 1,308.18

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Solution

The fourth proportional to 2,148.06, 2,962.86 and 1,308.18 is: 1,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.06 : 2,962.86 = 1,308.18 : x
  2. Step 2: Convert to fraction form
    2,148.06/2,962.86 = 1,308.18/x
  3. Step 3: Cross multiply
    2,148.06x = 2,962.86 × 1,308.18
  4. Step 4: Simplify right side
    2,148.06x = 3,875,954.19
  5. Step 5: Solve for x
    x = 3,875,954.19/2,148.06
  6. Step 6: Final answer
    x = 1,804.40

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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.