Home / 5,089.60-7,631.70-1,802.80

Finding the Fourth Proportional to 5,089.60, 7,631.70 and 1,802.80

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Solution

The fourth proportional to 5,089.60, 7,631.70 and 1,802.80 is: 2,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.60 : 7,631.70 = 1,802.80 : x
  2. Step 2: Convert to fraction form
    5,089.60/7,631.70 = 1,802.80/x
  3. Step 3: Cross multiply
    5,089.60x = 7,631.70 × 1,802.80
  4. Step 4: Simplify right side
    5,089.60x = 13,758,428.76
  5. Step 5: Solve for x
    x = 13,758,428.76/5,089.60
  6. Step 6: Final answer
    x = 2,703.24

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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.