Home / 6,077.40-9,117.39-1,918.61

Finding the Fourth Proportional to 6,077.40, 9,117.39 and 1,918.61

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Solution

The fourth proportional to 6,077.40, 9,117.39 and 1,918.61 is: 2,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,077.40 : 9,117.39 = 1,918.61 : x
  2. Step 2: Convert to fraction form
    6,077.40/9,117.39 = 1,918.61/x
  3. Step 3: Cross multiply
    6,077.40x = 9,117.39 × 1,918.61
  4. Step 4: Simplify right side
    6,077.40x = 17,492,715.63
  5. Step 5: Solve for x
    x = 17,492,715.63/6,077.40
  6. Step 6: Final answer
    x = 2,878.32

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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.