Home / 5,325.67-7,988.55-1,430.07

Finding the Fourth Proportional to 5,325.67, 7,988.55 and 1,430.07

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Solution

The fourth proportional to 5,325.67, 7,988.55 and 1,430.07 is: 2,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.67 : 7,988.55 = 1,430.07 : x
  2. Step 2: Convert to fraction form
    5,325.67/7,988.55 = 1,430.07/x
  3. Step 3: Cross multiply
    5,325.67x = 7,988.55 × 1,430.07
  4. Step 4: Simplify right side
    5,325.67x = 11,424,218.34
  5. Step 5: Solve for x
    x = 11,424,218.34/5,325.67
  6. Step 6: Final answer
    x = 2,145.12

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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.