Home / 1,502.95-2,075.49-1,421.14

Finding the Fourth Proportional to 1,502.95, 2,075.49 and 1,421.14

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Solution

The fourth proportional to 1,502.95, 2,075.49 and 1,421.14 is: 1,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.95 : 2,075.49 = 1,421.14 : x
  2. Step 2: Convert to fraction form
    1,502.95/2,075.49 = 1,421.14/x
  3. Step 3: Cross multiply
    1,502.95x = 2,075.49 × 1,421.14
  4. Step 4: Simplify right side
    1,502.95x = 2,949,561.86
  5. Step 5: Solve for x
    x = 2,949,561.86/1,502.95
  6. Step 6: Final answer
    x = 1,962.51

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Double scale
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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.