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Finding the Fourth Proportional to 5,870.41, 8,803.75 and 1,920.75

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Solution

The fourth proportional to 5,870.41, 8,803.75 and 1,920.75 is: 2,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.41 : 8,803.75 = 1,920.75 : x
  2. Step 2: Convert to fraction form
    5,870.41/8,803.75 = 1,920.75/x
  3. Step 3: Cross multiply
    5,870.41x = 8,803.75 × 1,920.75
  4. Step 4: Simplify right side
    5,870.41x = 16,909,802.81
  5. Step 5: Solve for x
    x = 16,909,802.81/5,870.41
  6. Step 6: Final answer
    x = 2,880.51

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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.