Home / 5,685.14-8,528.48-1,986.50

Finding the Fourth Proportional to 5,685.14, 8,528.48 and 1,986.50

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Solution

The fourth proportional to 5,685.14, 8,528.48 and 1,986.50 is: 2,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.14 : 8,528.48 = 1,986.50 : x
  2. Step 2: Convert to fraction form
    5,685.14/8,528.48 = 1,986.50/x
  3. Step 3: Cross multiply
    5,685.14x = 8,528.48 × 1,986.50
  4. Step 4: Simplify right side
    5,685.14x = 16,941,851.81
  5. Step 5: Solve for x
    x = 16,941,851.81/5,685.14
  6. Step 6: Final answer
    x = 2,980.02

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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.