Home / 2,075.21-3,113.27-614.48

Finding the Fourth Proportional to 2,075.21, 3,113.27 and 614.48

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Solution

The fourth proportional to 2,075.21, 3,113.27 and 614.48 is: 921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.21 : 3,113.27 = 614.48 : x
  2. Step 2: Convert to fraction form
    2,075.21/3,113.27 = 614.48/x
  3. Step 3: Cross multiply
    2,075.21x = 3,113.27 × 614.48
  4. Step 4: Simplify right side
    2,075.21x = 1,913,023.51
  5. Step 5: Solve for x
    x = 1,913,023.51/2,075.21
  6. Step 6: Final answer
    x = 921.85

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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.