Home / 2,370.02-3,554.74-638.78

Finding the Fourth Proportional to 2,370.02, 3,554.74 and 638.78

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Solution

The fourth proportional to 2,370.02, 3,554.74 and 638.78 is: 958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.02 : 3,554.74 = 638.78 : x
  2. Step 2: Convert to fraction form
    2,370.02/3,554.74 = 638.78/x
  3. Step 3: Cross multiply
    2,370.02x = 3,554.74 × 638.78
  4. Step 4: Simplify right side
    2,370.02x = 2,270,696.82
  5. Step 5: Solve for x
    x = 2,270,696.82/2,370.02
  6. Step 6: Final answer
    x = 958.09

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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.