Home / 4,989.58-7,484.40-1,291.56

Finding the Fourth Proportional to 4,989.58, 7,484.40 and 1,291.56

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Solution

The fourth proportional to 4,989.58, 7,484.40 and 1,291.56 is: 1,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.58 : 7,484.40 = 1,291.56 : x
  2. Step 2: Convert to fraction form
    4,989.58/7,484.40 = 1,291.56/x
  3. Step 3: Cross multiply
    4,989.58x = 7,484.40 × 1,291.56
  4. Step 4: Simplify right side
    4,989.58x = 9,666,514.24
  5. Step 5: Solve for x
    x = 9,666,514.24/4,989.58
  6. Step 6: Final answer
    x = 1,937.34

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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.