Home / 1,886.29-2,603.00-1,089.48

Finding the Fourth Proportional to 1,886.29, 2,603.00 and 1,089.48

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Solution

The fourth proportional to 1,886.29, 2,603.00 and 1,089.48 is: 1,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.29 : 2,603.00 = 1,089.48 : x
  2. Step 2: Convert to fraction form
    1,886.29/2,603.00 = 1,089.48/x
  3. Step 3: Cross multiply
    1,886.29x = 2,603.00 × 1,089.48
  4. Step 4: Simplify right side
    1,886.29x = 2,835,928.80
  5. Step 5: Solve for x
    x = 2,835,928.80/1,886.29
  6. Step 6: Final answer
    x = 1,503.44

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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.