Home / 1,850.40-2,548.80-1,535.10

Finding the Fourth Proportional to 1,850.40, 2,548.80 and 1,535.10

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Solution

The fourth proportional to 1,850.40, 2,548.80 and 1,535.10 is: 2,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.40 : 2,548.80 = 1,535.10 : x
  2. Step 2: Convert to fraction form
    1,850.40/2,548.80 = 1,535.10/x
  3. Step 3: Cross multiply
    1,850.40x = 2,548.80 × 1,535.10
  4. Step 4: Simplify right side
    1,850.40x = 3,912,662.88
  5. Step 5: Solve for x
    x = 3,912,662.88/1,850.40
  6. Step 6: Final answer
    x = 2,114.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.