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Finding the Fourth Proportional to 2,970.66, 4,457.48 and 1,326.77

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Solution

The fourth proportional to 2,970.66, 4,457.48 and 1,326.77 is: 1,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.66 : 4,457.48 = 1,326.77 : x
  2. Step 2: Convert to fraction form
    2,970.66/4,457.48 = 1,326.77/x
  3. Step 3: Cross multiply
    2,970.66x = 4,457.48 × 1,326.77
  4. Step 4: Simplify right side
    2,970.66x = 5,914,038.53
  5. Step 5: Solve for x
    x = 5,914,038.53/2,970.66
  6. Step 6: Final answer
    x = 1,990.81

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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.