Home / 6,845.40-10,266.70-1,913.80

Finding the Fourth Proportional to 6,845.40, 10,266.70 and 1,913.80

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Solution

The fourth proportional to 6,845.40, 10,266.70 and 1,913.80 is: 2,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.40 : 10,266.70 = 1,913.80 : x
  2. Step 2: Convert to fraction form
    6,845.40/10,266.70 = 1,913.80/x
  3. Step 3: Cross multiply
    6,845.40x = 10,266.70 × 1,913.80
  4. Step 4: Simplify right side
    6,845.40x = 19,648,410.46
  5. Step 5: Solve for x
    x = 19,648,410.46/6,845.40
  6. Step 6: Final answer
    x = 2,870.31

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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.