Home / 1,423.03-2,130.98-901.46

Finding the Fourth Proportional to 1,423.03, 2,130.98 and 901.46

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Solution

The fourth proportional to 1,423.03, 2,130.98 and 901.46 is: 1,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.03 : 2,130.98 = 901.46 : x
  2. Step 2: Convert to fraction form
    1,423.03/2,130.98 = 901.46/x
  3. Step 3: Cross multiply
    1,423.03x = 2,130.98 × 901.46
  4. Step 4: Simplify right side
    1,423.03x = 1,920,993.23
  5. Step 5: Solve for x
    x = 1,920,993.23/1,423.03
  6. Step 6: Final answer
    x = 1,349.93

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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.