Home / 5,391.80-7,444.37-4,130.63

Finding the Fourth Proportional to 5,391.80, 7,444.37 and 4,130.63

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Solution

The fourth proportional to 5,391.80, 7,444.37 and 4,130.63 is: 5,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.80 : 7,444.37 = 4,130.63 : x
  2. Step 2: Convert to fraction form
    5,391.80/7,444.37 = 4,130.63/x
  3. Step 3: Cross multiply
    5,391.80x = 7,444.37 × 4,130.63
  4. Step 4: Simplify right side
    5,391.80x = 30,749,880.18
  5. Step 5: Solve for x
    x = 30,749,880.18/5,391.80
  6. Step 6: Final answer
    x = 5,703.09

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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.