Home / 2,133.42-2,943.88-1,574.19

Finding the Fourth Proportional to 2,133.42, 2,943.88 and 1,574.19

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Solution

The fourth proportional to 2,133.42, 2,943.88 and 1,574.19 is: 2,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.42 : 2,943.88 = 1,574.19 : x
  2. Step 2: Convert to fraction form
    2,133.42/2,943.88 = 1,574.19/x
  3. Step 3: Cross multiply
    2,133.42x = 2,943.88 × 1,574.19
  4. Step 4: Simplify right side
    2,133.42x = 4,634,226.46
  5. Step 5: Solve for x
    x = 4,634,226.46/2,133.42
  6. Step 6: Final answer
    x = 2,172.21

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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.