Home / 1,507.78-2,258.40-1,244.80

Finding the Fourth Proportional to 1,507.78, 2,258.40 and 1,244.80

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Solution

The fourth proportional to 1,507.78, 2,258.40 and 1,244.80 is: 1,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.78 : 2,258.40 = 1,244.80 : x
  2. Step 2: Convert to fraction form
    1,507.78/2,258.40 = 1,244.80/x
  3. Step 3: Cross multiply
    1,507.78x = 2,258.40 × 1,244.80
  4. Step 4: Simplify right side
    1,507.78x = 2,811,256.32
  5. Step 5: Solve for x
    x = 2,811,256.32/1,507.78
  6. Step 6: Final answer
    x = 1,864.50

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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.