Home / 2,931.84-4,048.62-1,885.72

Finding the Fourth Proportional to 2,931.84, 4,048.62 and 1,885.72

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Solution

The fourth proportional to 2,931.84, 4,048.62 and 1,885.72 is: 2,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.84 : 4,048.62 = 1,885.72 : x
  2. Step 2: Convert to fraction form
    2,931.84/4,048.62 = 1,885.72/x
  3. Step 3: Cross multiply
    2,931.84x = 4,048.62 × 1,885.72
  4. Step 4: Simplify right side
    2,931.84x = 7,634,563.71
  5. Step 5: Solve for x
    x = 7,634,563.71/2,931.84
  6. Step 6: Final answer
    x = 2,604.02

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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.