Home / 2,875,487.81-3,968,172.95-1,586,328.21

Finding the Fourth Proportional to 2,875,487.81, 3,968,172.95 and 1,586,328.21

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Solution

The fourth proportional to 2,875,487.81, 3,968,172.95 and 1,586,328.21 is: 2,189,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875,487.81 : 3,968,172.95 = 1,586,328.21 : x
  2. Step 2: Convert to fraction form
    2,875,487.81/3,968,172.95 = 1,586,328.21/x
  3. Step 3: Cross multiply
    2,875,487.81x = 3,968,172.95 × 1,586,328.21
  4. Step 4: Simplify right side
    2,875,487.81x = 6,294,824,684,812.28
  5. Step 5: Solve for x
    x = 6,294,824,684,812.28/2,875,487.81
  6. Step 6: Final answer
    x = 2,189,132.81

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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.