Home / 5,315.34-7,970.55-1,616.74

Finding the Fourth Proportional to 5,315.34, 7,970.55 and 1,616.74

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Solution

The fourth proportional to 5,315.34, 7,970.55 and 1,616.74 is: 2,424.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.34 : 7,970.55 = 1,616.74 : x
  2. Step 2: Convert to fraction form
    5,315.34/7,970.55 = 1,616.74/x
  3. Step 3: Cross multiply
    5,315.34x = 7,970.55 × 1,616.74
  4. Step 4: Simplify right side
    5,315.34x = 12,886,307.01
  5. Step 5: Solve for x
    x = 12,886,307.01/5,315.34
  6. Step 6: Final answer
    x = 2,424.36

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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.