Home / 7,900.37-10,902.41-4,315.31

Finding the Fourth Proportional to 7,900.37, 10,902.41 and 4,315.31

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Solution

The fourth proportional to 7,900.37, 10,902.41 and 4,315.31 is: 5,955.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.37 : 10,902.41 = 4,315.31 : x
  2. Step 2: Convert to fraction form
    7,900.37/10,902.41 = 4,315.31/x
  3. Step 3: Cross multiply
    7,900.37x = 10,902.41 × 4,315.31
  4. Step 4: Simplify right side
    7,900.37x = 47,047,202.81
  5. Step 5: Solve for x
    x = 47,047,202.81/7,900.37
  6. Step 6: Final answer
    x = 5,955.07

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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.