Home / 2,117.47-3,176.93-1,090.75

Finding the Fourth Proportional to 2,117.47, 3,176.93 and 1,090.75

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Solution

The fourth proportional to 2,117.47, 3,176.93 and 1,090.75 is: 1,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.47 : 3,176.93 = 1,090.75 : x
  2. Step 2: Convert to fraction form
    2,117.47/3,176.93 = 1,090.75/x
  3. Step 3: Cross multiply
    2,117.47x = 3,176.93 × 1,090.75
  4. Step 4: Simplify right side
    2,117.47x = 3,465,236.40
  5. Step 5: Solve for x
    x = 3,465,236.40/2,117.47
  6. Step 6: Final answer
    x = 1,636.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.