Home / 2,406.16-3,317.52-1,988.20

Finding the Fourth Proportional to 2,406.16, 3,317.52 and 1,988.20

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Solution

The fourth proportional to 2,406.16, 3,317.52 and 1,988.20 is: 2,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.16 : 3,317.52 = 1,988.20 : x
  2. Step 2: Convert to fraction form
    2,406.16/3,317.52 = 1,988.20/x
  3. Step 3: Cross multiply
    2,406.16x = 3,317.52 × 1,988.20
  4. Step 4: Simplify right side
    2,406.16x = 6,595,893.26
  5. Step 5: Solve for x
    x = 6,595,893.26/2,406.16
  6. Step 6: Final answer
    x = 2,741.25

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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.