Home / 2,014.40-3,020.70-919.10

Finding the Fourth Proportional to 2,014.40, 3,020.70 and 919.10

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Solution

The fourth proportional to 2,014.40, 3,020.70 and 919.10 is: 1,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.40 : 3,020.70 = 919.10 : x
  2. Step 2: Convert to fraction form
    2,014.40/3,020.70 = 919.10/x
  3. Step 3: Cross multiply
    2,014.40x = 3,020.70 × 919.10
  4. Step 4: Simplify right side
    2,014.40x = 2,776,325.37
  5. Step 5: Solve for x
    x = 2,776,325.37/2,014.40
  6. Step 6: Final answer
    x = 1,378.24

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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.