Home / 7,851.88-10,835.51-4,315.01

Finding the Fourth Proportional to 7,851.88, 10,835.51 and 4,315.01

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Solution

The fourth proportional to 7,851.88, 10,835.51 and 4,315.01 is: 5,954.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.88 : 10,835.51 = 4,315.01 : x
  2. Step 2: Convert to fraction form
    7,851.88/10,835.51 = 4,315.01/x
  3. Step 3: Cross multiply
    7,851.88x = 10,835.51 × 4,315.01
  4. Step 4: Simplify right side
    7,851.88x = 46,755,334.01
  5. Step 5: Solve for x
    x = 46,755,334.01/7,851.88
  6. Step 6: Final answer
    x = 5,954.67

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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.