Home / 1,270.06-1,904.74-490.16

Finding the Fourth Proportional to 1,270.06, 1,904.74 and 490.16

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Solution

The fourth proportional to 1,270.06, 1,904.74 and 490.16 is: 735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.06 : 1,904.74 = 490.16 : x
  2. Step 2: Convert to fraction form
    1,270.06/1,904.74 = 490.16/x
  3. Step 3: Cross multiply
    1,270.06x = 1,904.74 × 490.16
  4. Step 4: Simplify right side
    1,270.06x = 933,627.36
  5. Step 5: Solve for x
    x = 933,627.36/1,270.06
  6. Step 6: Final answer
    x = 735.10

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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.