Home / 5,389.02-8,080.92-1,878.93

Finding the Fourth Proportional to 5,389.02, 8,080.92 and 1,878.93

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Solution

The fourth proportional to 5,389.02, 8,080.92 and 1,878.93 is: 2,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.02 : 8,080.92 = 1,878.93 : x
  2. Step 2: Convert to fraction form
    5,389.02/8,080.92 = 1,878.93/x
  3. Step 3: Cross multiply
    5,389.02x = 8,080.92 × 1,878.93
  4. Step 4: Simplify right side
    5,389.02x = 15,183,483.02
  5. Step 5: Solve for x
    x = 15,183,483.02/5,389.02
  6. Step 6: Final answer
    x = 2,817.49

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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.