Home / 4,719.65-6,510.71-3,145.01

Finding the Fourth Proportional to 4,719.65, 6,510.71 and 3,145.01

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Solution

The fourth proportional to 4,719.65, 6,510.71 and 3,145.01 is: 4,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.65 : 6,510.71 = 3,145.01 : x
  2. Step 2: Convert to fraction form
    4,719.65/6,510.71 = 3,145.01/x
  3. Step 3: Cross multiply
    4,719.65x = 6,510.71 × 3,145.01
  4. Step 4: Simplify right side
    4,719.65x = 20,476,223.37
  5. Step 5: Solve for x
    x = 20,476,223.37/4,719.65
  6. Step 6: Final answer
    x = 4,338.51

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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.