Home / 5,386.34-7,430.86-3,289.26

Finding the Fourth Proportional to 5,386.34, 7,430.86 and 3,289.26

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Solution

The fourth proportional to 5,386.34, 7,430.86 and 3,289.26 is: 4,537.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.34 : 7,430.86 = 3,289.26 : x
  2. Step 2: Convert to fraction form
    5,386.34/7,430.86 = 3,289.26/x
  3. Step 3: Cross multiply
    5,386.34x = 7,430.86 × 3,289.26
  4. Step 4: Simplify right side
    5,386.34x = 24,442,030.56
  5. Step 5: Solve for x
    x = 24,442,030.56/5,386.34
  6. Step 6: Final answer
    x = 4,537.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.