Home / 4,987.40-7,482.72-1,702.58

Finding the Fourth Proportional to 4,987.40, 7,482.72 and 1,702.58

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Solution

The fourth proportional to 4,987.40, 7,482.72 and 1,702.58 is: 2,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.40 : 7,482.72 = 1,702.58 : x
  2. Step 2: Convert to fraction form
    4,987.40/7,482.72 = 1,702.58/x
  3. Step 3: Cross multiply
    4,987.40x = 7,482.72 × 1,702.58
  4. Step 4: Simplify right side
    4,987.40x = 12,739,929.42
  5. Step 5: Solve for x
    x = 12,739,929.42/4,987.40
  6. Step 6: Final answer
    x = 2,554.42

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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.