Home / 6,843.90-10,265.68-1,913.40

Finding the Fourth Proportional to 6,843.90, 10,265.68 and 1,913.40

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Solution

The fourth proportional to 6,843.90, 10,265.68 and 1,913.40 is: 2,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,843.90 : 10,265.68 = 1,913.40 : x
  2. Step 2: Convert to fraction form
    6,843.90/10,265.68 = 1,913.40/x
  3. Step 3: Cross multiply
    6,843.90x = 10,265.68 × 1,913.40
  4. Step 4: Simplify right side
    6,843.90x = 19,642,352.11
  5. Step 5: Solve for x
    x = 19,642,352.11/6,843.90
  6. Step 6: Final answer
    x = 2,870.05

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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.