Home / 5,385.52-8,075.34-1,686.76

Finding the Fourth Proportional to 5,385.52, 8,075.34 and 1,686.76

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Solution

The fourth proportional to 5,385.52, 8,075.34 and 1,686.76 is: 2,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.52 : 8,075.34 = 1,686.76 : x
  2. Step 2: Convert to fraction form
    5,385.52/8,075.34 = 1,686.76/x
  3. Step 3: Cross multiply
    5,385.52x = 8,075.34 × 1,686.76
  4. Step 4: Simplify right side
    5,385.52x = 13,621,160.50
  5. Step 5: Solve for x
    x = 13,621,160.50/5,385.52
  6. Step 6: Final answer
    x = 2,529.22

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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.