Home / 7,017.65-10,528.57-2,087.45

Finding the Fourth Proportional to 7,017.65, 10,528.57 and 2,087.45

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Solution

The fourth proportional to 7,017.65, 10,528.57 and 2,087.45 is: 3,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.65 : 10,528.57 = 2,087.45 : x
  2. Step 2: Convert to fraction form
    7,017.65/10,528.57 = 2,087.45/x
  3. Step 3: Cross multiply
    7,017.65x = 10,528.57 × 2,087.45
  4. Step 4: Simplify right side
    7,017.65x = 21,977,863.45
  5. Step 5: Solve for x
    x = 21,977,863.45/7,017.65
  6. Step 6: Final answer
    x = 3,131.80

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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.