Home / 1,503.40-2,252.70-1,258.60

Finding the Fourth Proportional to 1,503.40, 2,252.70 and 1,258.60

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Solution

The fourth proportional to 1,503.40, 2,252.70 and 1,258.60 is: 1,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.40 : 2,252.70 = 1,258.60 : x
  2. Step 2: Convert to fraction form
    1,503.40/2,252.70 = 1,258.60/x
  3. Step 3: Cross multiply
    1,503.40x = 2,252.70 × 1,258.60
  4. Step 4: Simplify right side
    1,503.40x = 2,835,248.22
  5. Step 5: Solve for x
    x = 2,835,248.22/1,503.40
  6. Step 6: Final answer
    x = 1,885.89

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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.