Home / 7,325.89-10,988.74-1,779.29

Finding the Fourth Proportional to 7,325.89, 10,988.74 and 1,779.29

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Solution

The fourth proportional to 7,325.89, 10,988.74 and 1,779.29 is: 2,668.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.89 : 10,988.74 = 1,779.29 : x
  2. Step 2: Convert to fraction form
    7,325.89/10,988.74 = 1,779.29/x
  3. Step 3: Cross multiply
    7,325.89x = 10,988.74 × 1,779.29
  4. Step 4: Simplify right side
    7,325.89x = 19,552,155.19
  5. Step 5: Solve for x
    x = 19,552,155.19/7,325.89
  6. Step 6: Final answer
    x = 2,668.91

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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.