Home / 6,117.51-9,171.77-1,955.12

Finding the Fourth Proportional to 6,117.51, 9,171.77 and 1,955.12

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Solution

The fourth proportional to 6,117.51, 9,171.77 and 1,955.12 is: 2,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.51 : 9,171.77 = 1,955.12 : x
  2. Step 2: Convert to fraction form
    6,117.51/9,171.77 = 1,955.12/x
  3. Step 3: Cross multiply
    6,117.51x = 9,171.77 × 1,955.12
  4. Step 4: Simplify right side
    6,117.51x = 17,931,865.10
  5. Step 5: Solve for x
    x = 17,931,865.10/6,117.51
  6. Step 6: Final answer
    x = 2,931.24

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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.