Home / 1,465.74-2,021.35-934.07

Finding the Fourth Proportional to 1,465.74, 2,021.35 and 934.07

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Solution

The fourth proportional to 1,465.74, 2,021.35 and 934.07 is: 1,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.74 : 2,021.35 = 934.07 : x
  2. Step 2: Convert to fraction form
    1,465.74/2,021.35 = 934.07/x
  3. Step 3: Cross multiply
    1,465.74x = 2,021.35 × 934.07
  4. Step 4: Simplify right side
    1,465.74x = 1,888,080.89
  5. Step 5: Solve for x
    x = 1,888,080.89/1,465.74
  6. Step 6: Final answer
    x = 1,288.14

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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.